Displaying 20 results from an estimated 300 matches similar to: "cache_sweeper causes undefined method error"
2008 Mar 06
3
cache_sweeper
Hi,
Why is cache_sweeper not a documented method? I was pretty sure it
used to be, but I could be wrong. I can''t seem to find any
information on it anymore in the online docs.
As a side note, looking at the code for cache_sweeper it appears to
only work with the :only option, not :except (ignores it)... what''s
the reason for this?
Thanks,
Andrew
2008 Jan 26
0
"value must be enumerable" exception when using a sweeper?
Folks,
I''m going slightly crazy here - I implemented a Sweeper in an older app
and used nearly the same exact code in my new app, yet I keep getting
this ''value must be enumerable'' exception. Even after I cut most of the
code away, I still get the error. If anyone can help, I would be much
obliged.
Notes: I''m using Engines... wonder if that could cause a
2005 Apr 25
1
Problems when using sweepers with postbacks
I''m using a cache sweeper class [1] to take care of some pretty complex
sweeping. However, there is a problem with the current implementation.
Namely, the sweeper gets called only when an action named in
cache_sweeper is called using GET. As many methods where sweeper would
be useful are using postback to send the form to the same action, this
causes the cache to get swept when
2007 Sep 10
2
expire_page not working
I''ve enabled page caching on a site I''m currently constructing. The
sweeper is called upon any changes made to the model, as expected.
The sweeper code is as follows:
class PersonSweeper < ActionController::Caching::Sweeper
observe Person
def after_update(person)
expire_staff_page
end
def after_destroy(person)
expire_staff_page
end
def
2006 Sep 15
2
Caching::Sweeper Access to Controller
Hello,
I''m running Mongrel 0.3.13.3, cluster 0.2.0, and Rails 1.1.6 and I
have a problem with a sweeper not having access to the controller
instance.
NoMethodError (undefined method `session'' for nil:NilClass):
/app/models/audit_sweeper.rb:16:in `log''
/app/models/audit_sweeper.rb:9:in `after_update''
2006 Sep 12
2
Cache sweeping and render_component (my mistake or Rails bug?)
Hi
I''m working on a program which relies on heavy cache sweeper usage.
I''ve just bumped onto an odd problem. When using render_component
method in layouts or templates with cache sweeping turned on, Rails
throws an exception with the following message:
NoMethodError in TestController#index
You have a nil object when you didn''t expect it!
The error occured while
2006 Jan 27
0
Cache Sweepers and runner scripts that act on models?
I created a script that I call by ''./script/runner -e production
UpdateItems.get_new_items()'', which basically calls the model Item:
Item.create(attributes...)
I''ve set up a cache sweeper which removes caches after each
create/destroy/update on Item, and it works fine when accessing
controllers via the web server, but apparently doesn''t work via runner.
2006 Apr 09
1
PageSweeper not working since upgrading to 1.1.1
Hi, I upgraded from 1.0 to 1.1.1, now my cache sweepers acts up.
They worked perfectly before he upgrade, now I get strange errors.
I have an empty controller, it looks like this:
class PageElementsController < ApplicationController
cache_sweeper :element_sweeper
def element_container_show
render :inline=>""
end
end
The sweeper looks like this:
class
2007 Feb 14
4
cache sweeper not getting called
Hi,
I''ve started to implement page caches but I''ve hit a brick wall getting
a sweeper to clear the cache when needed. It seems that any models that
I tell it to observe aren''t being observed properly. If I add the
sweeper to a controller the initialize method runs, but no matter what I
do the after_save/after_update callbacks aren''t running. Also if I try
to
2008 Mar 27
2
rake only works once from rails
posted this on Ruby forum, no luck there -
maybe a Railser has dealt with this issue...
I''ve made a rake task that I''m running from my rails, and it works - but
only once. If I then restart the server (mongrel) it works again - once.
I can simulate this in the console session as shown...
q = Rake::Task["cache_sweeper"]
=> <Rake::Task cache_sweeper =>
2006 May 21
0
expiring cache fragments using script/runner
I''ve just set up caching on my site and want to expire some of fragments on
an hourly basis.
I was going to use cron and script/runner to do this.
For other fragments that I am expiring, I am using expire_fragment inside a
sweeper class, something like:
class QuestionSweeper < ActionController::Caching::Sweeper
observe Question
def after_validation_on_update(question)
2006 Jan 30
1
acts_as_taggable => error: undefined method ''tag''
I get an "undefined method ''tag''" when I try to use the
acts_as_taggable.
Note that it''s not the issue of bouncing webrick after changing the
environment.rb file. (I stumbled on that too... :-( ).
I read all the doc I could find (on this site, on
http://rails.techno-weenie.net and at http://taggable.rubyforge.org/)
but I couldn''t find anything I
2007 Oct 21
4
Making 'expire_fragment' available to a model?
I noticed a lot of repetition across different Sweeper models in my
app expiring the same fragments and so have been trying to move all
the expire_fragment calls into another model which the sweepers can
then use but it''s not working as I''d hoped..
I''ve created a CacheDestroyer model and want to be able to call
something to the effect of:
2006 Apr 08
2
trouble expiring cached pages
I''m having a bear of a time getting my cached pages to expire. Maybe
one of you guys can help me out. I''ll show my sweeper and then my log
to show that it "should" be working.
class PragmaticSweeper < ActionController::Caching::Sweeper
observe Comment
def after_save(comment)
expire_page(comment.post_id)
end
private
def expire_page(post_id)
2007 Oct 24
0
Sweeper for few models
For example - i have a sweeper for one model(in this case About).
class AboutSweeper < ActionController::Caching::Sweeper
observe About
def after_create(data)
expire_about(data)
end
def after_save(data)
expire_about(data)
end
def after_destroy(data)
expire_about(data)
end
def expire_about(data)
FileUtils.rm_rf
2008 Apr 01
1
"Undefined method merge" when using sweeper
Hi,
I''m trying to use sweepers for the first time and got a problem - I
get "undefined method `merge'' for "/signature/
f2d7c7c66450b169.html":String". The "/signature/f2d7c7c66450b169.html"
part of the error message is the cached page.
Here''s my sweeper:
class FooSweeper < ActionController::Caching::Sweeper
observe Foo
def
2010 Sep 08
0
Re: Call expire_fragment from outside sweepers or controllers
xponrails wrote:
> Hi all.
>
> I need to expire cached fragments from outside sweepers or
> controllers: I have a rake task that calls a method inside a module in
> the /lib directory. This task will be called at a scheduled time by a
> crontab job.
>
> After method execution I would like to expire some cached fragments.
>
> I''ve just tried to import
2009 Aug 04
0
Authlogic::How to access current user from within a cache sweeper?
So I''m trying to follow along in Chad Fowler''s Rails Recipes (recipe
#59, Keeping track of who did what) and I simply want to access the
current user from within my cache sweeper. Normally you just
reference @current_user but that doesn''t seem to be the case here.
In Chad''s example, he calls controller.session[:user]. What''s the
Authlogic equivalent?
2008 Sep 28
4
Cannot expire cache from background process?
Hello,
I am trying to expire fragments (or at least trigger their expiration)
from a daemon that''s running in the background.
The daemon is updating all kinds of important lists every few minutes
from the background.
So I have to find some way to DO or TRIGGER the fragment caching from
this daemon.
Unfortunately just using the normal commands like:
expire_fragment :controller =>
2005 Jun 26
4
calling controller and caching from a sweeper class
[cross-posting to rails and typo lists]
Hi,
I''m tinkering with the code for typo, a rails-based blog engine.
Typo has an XmlController with actions "rss" and "atom" which generate feed.xml
files, and it uses a caches_page declaration to cache the files that get
generated by those actions. It also has a Sweeper (Observer) class that expires
those cached files when a